Spool



FIG. 1 is a perspective view of a spool;

FIG. 2 is a side view of the spool of FIG. 1, the side view being rotationally symmetric;

FIG. 3 is a top plan view of the spool of FIG. 1;

FIG. 4 is a bottom plan view of the spool of FIG. 1; and,

FIG. 5 is a perspective view of the spool of FIG. 1, now shown wound with a thread, in phantom.

The broken lines showing the thread, as well as the amount, size and location of the thread relative to the claimed design, are to show the environment only and are not part of the claimed design. 

The ornamental design for a spool, as shown and described. 